Corrosion investigation of multilayered ceramics and experimental nickel alloys in SCWO process environments

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Description

A corrosion investigation was done at MODAR, Inc., using a supercritical water oxidation (SCWO) vessel reactor. Several types of multilayered ceramic rings and experimental nickel alloy coupons were exposed to a chlorinated cutting oil TrimSol, in the SCWO process. A corrosion casing was designed and mounted in the vessel reactor with precautions to minimize chances of degrading the integrity of the pressure vessel. Fifteen of the ceramic coated rings were stacked vertically in the casing at one time for each test. There was a total of 36 rings. The rings were in groupings of three rings that formed five sections. ... continued below

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200 p.

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Garcia, K.M. & Mizia, R. February 1, 1995.

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Description

A corrosion investigation was done at MODAR, Inc., using a supercritical water oxidation (SCWO) vessel reactor. Several types of multilayered ceramic rings and experimental nickel alloy coupons were exposed to a chlorinated cutting oil TrimSol, in the SCWO process. A corrosion casing was designed and mounted in the vessel reactor with precautions to minimize chances of degrading the integrity of the pressure vessel. Fifteen of the ceramic coated rings were stacked vertically in the casing at one time for each test. There was a total of 36 rings. The rings were in groupings of three rings that formed five sections. Each section saw a different SCWO environment, ranging from 650 to 300{degrees}C. The metal coupons were mounted on horizontal threaded holders welded to a vertical rod attached to the casing cover in order to hang down the middle of the casing. The experimental nickel alloys performed better than the baseline nickel alloys. A titania multilayered ceramic system sprayed onto a titanium ring remained intact after 120-180 hours of exposure. This is the longest time any coating system has withstood such an environment without significant loss.

Physical Description

200 p.

Notes

INIS; OSTI as DE95008666

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  • Other Information: PBD: Feb 1995

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  • Other: DE95008666
  • Report No.: INEL--94/0017
  • Grant Number: AC07-94ID13223
  • DOI: 10.2172/31690 | External Link
  • Office of Scientific & Technical Information Report Number: 31690
  • Archival Resource Key: ark:/67531/metadc687043

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  • February 1, 1995

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 24, 2016, 6 p.m.

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Garcia, K.M. & Mizia, R. Corrosion investigation of multilayered ceramics and experimental nickel alloys in SCWO process environments, report, February 1, 1995; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc687043/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.